Description (CNA)
Adminer before 5.4.3 uses a CSRF token scheme that transmits both the XOR mask and the masked value in every token (format (rand XOR secret):rand), allowing anyone who observes a single CSRF token (e.g., via network sniffing, log files, Referrer header, or XSS) to recover the session secret with a single XOR operation and forge unlimited valid tokens. The implementation is further weakened by a low-entropy session token (rand(1,1e6), ~20 bits) that permits blind brute-force, and by use of loose comparison (==) in token verification, enabling PHP type juggling. Exploitation enables cross-site request forgery against authenticated sessions, including execution of arbitrary SQL queries.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| vrana / adminer | affected 0 before 5.4.3; unaffected 5.4.3 |
CWE
CWE-330
References
- https://github.com/vrana/adminer/security/advisories/GHSA-33j4-hc95-pggg
- https://www.vulncheck.com/advisories/adminer-before-csrf-token-secret-recovery-via-xor-masking
ADP enrichment
No English description supplied.